CN102553555A - Regeneration method of powdered activated carbon - Google Patents
Regeneration method of powdered activated carbon Download PDFInfo
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- CN102553555A CN102553555A CN201210006255XA CN201210006255A CN102553555A CN 102553555 A CN102553555 A CN 102553555A CN 201210006255X A CN201210006255X A CN 201210006255XA CN 201210006255 A CN201210006255 A CN 201210006255A CN 102553555 A CN102553555 A CN 102553555A
- Authority
- CN
- China
- Prior art keywords
- caffeine
- active carbon
- regenerating furnace
- activated carbon
- regeneration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000011069 regeneration method Methods 0.000 title claims abstract description 32
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 claims abstract description 111
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229960001948 caffeine Drugs 0.000 claims abstract description 55
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 claims abstract description 55
- 230000008929 regeneration Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 230000001172 regenerating effect Effects 0.000 claims description 40
- 229910052799 carbon Inorganic materials 0.000 claims description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 13
- 238000004821 distillation Methods 0.000 claims description 12
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 239000000049 pigment Substances 0.000 claims description 8
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 7
- 238000009418 renovation Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- -1 xanthine alkaloid compound Chemical class 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- MGJKQDOBUOMPEZ-UHFFFAOYSA-N N,N'-dimethylurea Chemical compound CNC(=O)NC MGJKQDOBUOMPEZ-UHFFFAOYSA-N 0.000 description 1
- 208000007443 Neurasthenia Diseases 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical compound [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a regeneration method of powdered activated carbon. The method utilizes the technology of continuous recovery of caffeine by two-gradient heating, and the regeneration and comprehensive resource technology of activated carbon, and has the characteristics of continuous production process, high caffeine capture efficiency, and high activated carbon regeneration rate. The caffeine is effectively recovered, and meanwhile the regeneration and resource of waste activated carbon are also realized, and the emission of carbon dioxide formed by the combustion of the waste activated carbon is avoided.
Description
Technical field
The present invention relates to a kind of waste active carbon regeneration techniques, be specifically related to a kind of renovation process of powdered activated carbon.
Background technology
Caffeine belongs to the xanthine alkaloid compound, is a kind of central nervous excitation agent, and is because the medicine of main component is used to treat neurasthenia and symptoms such as spirit inhibition, headache, respond well with coffee, is widely used on the market now.In the caffeine production process, adopting urea, monomethyl amine and monoxone is the dimethyl urea synthetic route of base stock.In the production process, adopt active carbon that the synthetic bullion caffeine aqueous solution is carried out decolorizing and refining, when removing pigment and other impurity, also adsorbed a large amount of caffeines, produced the waste active carbon of year caffeine thus.The annual discharge capacity of this waste active carbon reaches 2000 tons, wherein contains 20% caffeine.
Because of it dissolves in chloroform, former process using be that chloroform extraction reclaims caffeine, exist the medicament loss big in the processing procedure, problems such as medicament strong toxicity; And the active carbon that removes caffeine adopts burning method to handle at present, not only causes the wasting of resources of high added value caffeine and active carbon, and burn to produce toxic and harmfuls such as a large amount of CO2 and nitrogen oxide, oxysulfide, has polluted environment.Therefore, exploitation is a kind of reclaims caffeine and makes the method and technology of regeneration of activated carbon significant from carry the caffeine active carbon.
At present, the regeneration of activated carbon technology of using in the industry mainly contains following several kinds: the chemical method of medicament wash-out, bio-regeneration method, wet oxidation process, electrolytic oxidation and thermal regeneration method.The temperature of in heating process, decomposing desorption according to adsorbed organic matter in the active carbon is different, and the thermal regeneration method can be divided into low-temperature heat regeneration and heat regeneration, but effect is not very good.
Summary of the invention
The present invention overcomes the deficiency of prior art; A kind of method of utilizing method of reproduction to handle effective decolorizer regeneration of load caffeine in the exquisite process of caffeine has been proposed; Two sections gradient-heated of said method exploitation reclaim caffeine and regeneration of activated carbon comprehensive resource technology continuously; Have the advantages that production process is continuous, the caffeine capturing efficiency is high, the regeneration of activated carbon rate is high; The regeneration and the resource of waste active carbon when effectively reclaiming caffeine, have also been realized, the CO2 emission of having avoided the waste active carbon burning to form.
Technical scheme of the present invention is: continuously through one-level regenerating furnace, secondary regenerating furnace, spray column and condenser, the temperature control through strict realizes the regeneration of active carbon with waste active carbon for a kind of renovation process of powdered activated carbon, said method, and concrete steps are:
1) temperature rises to more than 100 ℃ in the one-level regenerating furnace, when secondary regenerating furnace temperature rises to more than 400 ℃, waste active carbon is added in the one-level regenerating furnace continuously.
2) the one-level regenerating furnace makes the water evaporation of absorption in the carbon granule, and the lower boiling organic matter of part also evaporates thereupon simultaneously, and temperature maintenance is at 100～130 ℃, and this part water vapour reclaims behind condenser.
3) active carbon after the dehydration gets in the secondary regenerating furnace, and it is the nitrogen of 0.005～0.007m/s that the secondary regenerating furnace feeds linear velocity, and temperature maintenance is in 420～450 ℃ of scopes; After caffeine distillation this moment; Taken out of by nitrogen, pigment decomposes simultaneously, and active carbon obtains regeneration.
4) for preventing that caffeine gas from condensing, the caffeine pipeline is auxilliary to have the companion hot, behind the entering spray column, captures with aqueous solution caffeine spray.
In the above-mentioned steps 1, the waste active carbon content of caffeine is 10～25%
In the above-mentioned steps 2, the active carbon water content after the dehydration is 5～8%.
In the above-mentioned steps 3, the regeneration of activated carbon rate is 90～93%.
In the above-mentioned steps 4, aqueous solution caffeine concentration is 0～0.25g/mL, and temperature is 20～80 ℃, and the caffeine capture rate is 96～100%.
The present invention has following beneficial effect
Two sections gradient-heated that the present invention relates to reclaim caffeine and regeneration of activated carbon comprehensive resource technology continuously; Have the advantages that production process is continuous, the caffeine capturing efficiency is high, the regeneration of activated carbon rate is high; The regeneration and the resource of waste active carbon when effectively reclaiming caffeine, have also been realized, the CO2 emission of having avoided the waste active carbon burning to form.
Description of drawings
Accompanying drawing is a schematic flow sheet of the present invention.
Among the figure, 1, the one-level regenerating furnace; 2, secondary regenerating furnace; 3, condenser; 4, spray column.
The specific embodiment
Said referring to accompanying drawing, continuously through one-level regenerating furnace 1, secondary regenerating furnace 2, spray column 4 and condenser 3, the temperature control through strict realizes the regeneration of active carbon with waste active carbon in the present invention.
Embodiment 1
Treat that temperature rises to 100 ℃ in the one-level regenerating furnace, secondary regenerating furnace temperature rises to 400 ℃, will carry the caffeine active carbon and add in the one-level regenerating furnace by adding speed 0.9t/h.Treat that the active carbon water content reduces to 8%, the active carbon after the dehydration is advanced in the secondary regenerating furnace, and nitrogen gas speed is 0.007m/s, this stage caffeine distillation, and pigment decomposes.Caffeine after the distillation gets into spray column and captures recovery, and the caffeine rate of recovery is 98%, and the regeneration of activated carbon rate is 88%.
Embodiment 2
Treat that temperature rises to 100 ℃ in the one-level regenerating furnace, secondary regenerating furnace temperature rises to 400 ℃, will carry the caffeine active carbon and add in the one-level regenerating furnace by adding speed 0.6t/h.Treat that the active carbon water content reduces to 6%, the active carbon after the dehydration is advanced in the secondary regenerating furnace, and nitrogen gas speed is 0.006m/s, this stage caffeine distillation, and pigment decomposes.Caffeine after the distillation gets into spray column and captures recovery, and the caffeine rate of recovery is 98.5%, and the regeneration of activated carbon rate is 89%.
Embodiment 3
Treat that temperature rises to 105 ℃ in the one-level regenerating furnace, secondary regenerating furnace temperature rises to 420 ℃, will carry the caffeine active carbon and add in the one-level regenerating furnace by adding speed 0.5t/h.Treat that the active carbon water content reduces to 5%, the active carbon after the dehydration is advanced in the secondary regenerating furnace, and nitrogen gas speed is 0.005m/s, this stage caffeine distillation, and pigment decomposes.Caffeine after the distillation gets into spray column and captures recovery, and the caffeine rate of recovery is 98%, and the regeneration of activated carbon rate is 90%.
Embodiment 4
Treat that temperature rises to 100 ℃ in the one-level regenerating furnace, secondary regenerating furnace temperature rises to 400 ℃, will carry the caffeine active carbon and add in the one-level regenerating furnace by adding speed 0.5t/h.Treat that the active carbon water content reduces to 6%, the active carbon after the dehydration is advanced in the secondary regenerating furnace, and nitrogen gas speed is 0.007m/s, this stage caffeine distillation, and pigment decomposes.Caffeine after the distillation gets into spray column and captures recovery, and the caffeine rate of recovery is 97%, and the regeneration of activated carbon rate is 90%.
Embodiment 5
Treat that temperature rises to 100 ℃ in the one-level regenerating furnace, secondary regenerating furnace temperature rises to 410 ℃, will carry the caffeine active carbon and add in the one-level regenerating furnace by adding speed 0.6t/h.Treat that the active carbon water content reduces to 8%, the active carbon after the dehydration is advanced in the secondary regenerating furnace, and nitrogen gas speed is 0.006m/s, this stage caffeine distillation, and pigment decomposes.Caffeine after the distillation gets into spray column and captures recovery, and the caffeine rate of recovery is 97.5%, and the regeneration of activated carbon rate is 89%.
Claims (3)
1. the renovation process of a powdered activated carbon is characterized in that: continuously through one-level regenerating furnace, secondary regenerating furnace, spray column and condenser, the temperature control through strict realizes the regeneration of active carbon to said method with waste active carbon, and concrete steps are:
1) temperature rises to more than 100 ℃ in the one-level regenerating furnace, when secondary regenerating furnace temperature rises to more than 400 ℃, waste active carbon is added in the one-level regenerating furnace continuously;
2) the one-level regenerating furnace makes the water evaporation of absorption in the carbon granule, and the lower boiling organic matter of part also evaporates thereupon simultaneously, and temperature maintenance is at 100～130 ℃, and this part water vapour reclaims behind condenser;
3) active carbon after the dehydration gets in the secondary regenerating furnace, and it is the nitrogen of 0.005～0.007m/s that the secondary regenerating furnace feeds linear velocity, and temperature maintenance is in 420～450 ℃ of scopes; After caffeine distillation this moment; Taken out of by nitrogen, pigment decomposes simultaneously, and active carbon obtains regeneration;
4) for preventing that caffeine gas from condensing, the caffeine pipeline is auxilliary to have the companion hot, behind the entering spray column, captures with aqueous solution caffeine spray.
2. the renovation process of powdered activated carbon according to claim 1, it is characterized in that: in the step 1, the waste active carbon content of caffeine is 10～25%; In the step 2; Active carbon water content after the dehydration is 5～8%, and in the step 3, the regeneration of activated carbon rate is 90～93%.
3. the renovation process of powdered activated carbon according to claim 1 and 2, it is characterized in that: in the step 4, aqueous solution caffeine concentration is 0～0.25g/mL, and temperature is 20～80 ℃, and the caffeine capture rate is 96～100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210006255.XA CN102553555B (en) | 2012-01-09 | 2012-01-09 | Regeneration method of powdered activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210006255.XA CN102553555B (en) | 2012-01-09 | 2012-01-09 | Regeneration method of powdered activated carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102553555A true CN102553555A (en) | 2012-07-11 |
| CN102553555B CN102553555B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210006255.XA Active CN102553555B (en) | 2012-01-09 | 2012-01-09 | Regeneration method of powdered activated carbon |
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| CN (1) | CN102553555B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044425A (en) * | 2013-01-23 | 2013-04-17 | 蒋仕军 | Active carbon and caffeine separation pyrolysis apparatus |
| CN105457617A (en) * | 2013-12-18 | 2016-04-06 | 帝斯曼江山制药（江苏）有限公司 | Activated carbon recovery technology |
| CN108212135A (en) * | 2017-12-29 | 2018-06-29 | 南通泰禾化工股份有限公司 | The recycling and processing device and method of dead catalyst in a kind of Bravo synthesis technology |
| CN111644167A (en) * | 2020-06-10 | 2020-09-11 | 湖北君集水处理有限公司 | Device and method for efficient regeneration and waste gas treatment of powdered activated carbon |
| CN112090417A (en) * | 2020-08-27 | 2020-12-18 | 杭州电子科技大学 | Powdered activated carbon regeneration device based on airflow heating and regeneration method thereof |
| CN113976603A (en) * | 2021-11-08 | 2022-01-28 | 北京艾孚润德环境科技有限责任公司 | In-situ soil remediation process for treating underground water based on multilayer reaction wall technology |
| WO2022163690A1 (en) * | 2021-01-28 | 2022-08-04 | 日本碍子株式会社 | Method for heat-treating film |
Citations (2)
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|---|---|---|---|---|
| WO2007145052A1 (en) * | 2006-06-14 | 2007-12-21 | Calgon Mitsubishi Chemical Corporation | Phosphorus compound-complexed activated carbon for electric double layer capacitor and method for producing the same |
| CN101704818A (en) * | 2009-12-22 | 2010-05-12 | 陈学玺 | Method for extracting caffeine from methylated mother through adsorption separation |
-
2012
- 2012-01-09 CN CN201210006255.XA patent/CN102553555B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007145052A1 (en) * | 2006-06-14 | 2007-12-21 | Calgon Mitsubishi Chemical Corporation | Phosphorus compound-complexed activated carbon for electric double layer capacitor and method for producing the same |
| CN101704818A (en) * | 2009-12-22 | 2010-05-12 | 陈学玺 | Method for extracting caffeine from methylated mother through adsorption separation |
Non-Patent Citations (2)
| Title |
|---|
| 《Carbon》 19961231 F.SALVADOR et al "A NEW METHOD FOR REGENERATING ACTIVATED CARBON BY THERMAL DESORPTION WITH LIQUID WATER UNDER SUBCRITICAL CONDITIONS" 第511-516页 1-3 第34卷, 第4期 * |
| F.SALVADOR ET AL: ""A NEW METHOD FOR REGENERATING ACTIVATED CARBON BY THERMAL DESORPTION WITH LIQUID WATER UNDER SUBCRITICAL CONDITIONS"", 《CARBON》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044425A (en) * | 2013-01-23 | 2013-04-17 | 蒋仕军 | Active carbon and caffeine separation pyrolysis apparatus |
| CN103044425B (en) * | 2013-01-23 | 2015-04-22 | 蒋仕军 | Active carbon and caffeine separation pyrolysis apparatus |
| CN105457617A (en) * | 2013-12-18 | 2016-04-06 | 帝斯曼江山制药（江苏）有限公司 | Activated carbon recovery technology |
| CN108212135A (en) * | 2017-12-29 | 2018-06-29 | 南通泰禾化工股份有限公司 | The recycling and processing device and method of dead catalyst in a kind of Bravo synthesis technology |
| CN111644167A (en) * | 2020-06-10 | 2020-09-11 | 湖北君集水处理有限公司 | Device and method for efficient regeneration and waste gas treatment of powdered activated carbon |
| CN112090417A (en) * | 2020-08-27 | 2020-12-18 | 杭州电子科技大学 | Powdered activated carbon regeneration device based on airflow heating and regeneration method thereof |
| CN112090417B (en) * | 2020-08-27 | 2023-06-13 | 杭州电子科技大学 | Powder activated carbon regeneration device based on air flow heating and regeneration method thereof |
| WO2022163690A1 (en) * | 2021-01-28 | 2022-08-04 | 日本碍子株式会社 | Method for heat-treating film |
| CN113976603A (en) * | 2021-11-08 | 2022-01-28 | 北京艾孚润德环境科技有限责任公司 | In-situ soil remediation process for treating underground water based on multilayer reaction wall technology |
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| Publication number | Publication date |
|---|---|
| CN102553555B (en) | 2014-11-05 |
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Effective date of registration: 20130502 Address after: 266061 Shandong Province, Qingdao city Laoshan District Songling Road No. 99 Applicant after: Qingdao University of Science & Technology Applicant after: Shandong Xinhua Pharmaceutical Co., Ltd. Address before: 266061 Shandong Province, Qingdao city Laoshan District Songling Road No. 99 Applicant before: Qingdao University of Science & Technology |
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